Plugins - Added descriptions

Settings - Plugin settings tab
UI - Catch exceptions during exception dialog display
Plugins - Implemented enable/disable of plugins (WIP)
Novation - Added Launchpad Mini layout and image

src/Plugins/Artemis.Plugins.Devices.Logitech/plugin.json

@@ -1,6 +1,7 @@
 {
   "Guid": "62a45c0c-884c-4868-9fd7-3c5987fe07ca",
   "Name": "Logitech Devices",
+  "Description": "Allows Artemis to control the lighting on Logitech mice and keyboards.",
   "Version": "1.0.0.0",
   "Main": "Artemis.Plugins.Devices.Logitech.dll"
 }